Journal issues: 2/2013
1 March, 2013
Pumping station security increasing based on modeling formation and dispersal of combustibles and explosives
Investigations of emergencies show that most accidents at pumping stations are associated with emergency gas pollution. Despite many methods to deal with emergency gas pollution in the working area exist, this issue is still relevant and partially solved. This paper solves a problem of rational placement of air intake and supply ventilation grids taking into account the nature of the formation of the gas-air mixture, which makes it possible to minimize the accumulation of hazardous substances. The paper used a new direction in modeling of dispersal of gaseous substances – the numerical simulation method (CFD – technology, Computational Fluid Dynamics). The experiments were performed using software package FlowVision, designed to simulate three-dimensional flow of liquid and gas in technical and natural objects, with computer graphics-based visualization of the flows. As a result of numerical experiments, it was found possible to minimize the accumulation of hazardous substances when installing air intake and supply air grids given the nature of gas-air mixture formation. Simulation of an emergency with the subsequent release of propane-butane mixture into the pump room allowed to trace the shape and the trajectory of the gas-air cloud from the beginning of the emergency. It is confirmed by calculation and is reasonable to develop measures for preventing emergencies.
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emergency; emergency ventilation; fire explosion safety; gas-air mixture; general exchange ventilation; аварийная вентиляция; авария; взрывопожаробезопасность; газо-воздушная смесь; общеобменная вентиляция References to this article (GOST) E.R. Akhmatvalieva, A.V. Solodovnikov. Pumping station security increasing based on modeling formation and dispersal of combustibles and explosives // Electronic scientific journal "Oil and Gas Business". 2013. №2. P.395-406. URL: http://ogbus.ru/authors/AkhmatvalievaER/AkhmatvalievaER_1.pdf